You may want to choose a red rose bush for the host. That is the original color of roses and the strongest. Choose another bush to cut the donor from.
Watch for blooms to fade form the flowers and petals drop but before buds swell up for the next flowering. Make sure that the knife you use is sharp. A clean cut is essential for successful rose grafting.
Find a nodule(button) on the host, cut a "V" right on the button, and make it deep and about an inch long so you can place the donor implant in the cut stem. Be sure while making the cut on the host stem, you see the wooden inner core of the stem.
Next go to the donor rose bush, and find a new green, single branch and make the cut so that there are at least three nodules above the cut.
Match the cut on the donor to the cut on the host. Insert the implant in the "V" cut on the host for the union.
Use the tree seal paint to seal the union and use the green floral tape to bind the wound together. All the sap from the main stock will flow toward the implant and hopefully will take.